I'm a looking at the Amplifi Instant Wifi router. Currently have an Airport Extreme (WPA 2 security) plugged into a DSL cable modem that works ok, but tends to drop connections. At the most there will be 3 laptops all within 50 feet at all times. The Amplifi Instant seems the way to go, but I wanted to get some confirmation. Perhaps I should get the Amplifi HD? Thanks for any input.